Citronic CXB10A User manual

CXBA
Active Subwoofers
Item ref: 178.275UK, 178.276UK
User Manual

178.275UK, 178.276UK User Manual
Caution: Please read this manual carefully before operating
Damage caused by misuse is not covered by the warranty
Introduction
Thank you for choosing this CXBA active subwoofer, which can be added to existing systems or used as
the main unit to power up to 4 satellite speakers in a compact PA system. Please read this manual prior to
use to avoid damage through misuse.
Important Note
This product is fitted with a BRIDGE/STEREO slide switch.
Make sure this is switched to STEREO for standard operation.
Warning
To prevent the risk of fire or electric shock, do not expose this appliance to rain or moisture and avoid
ingress of water into the enclosure. To prevent electric shock do not remove the cover. No user
serviceable parts inside. Refer servicing to qualified service personnel.
Safety
Prior to connecting mains, ensure that the supply voltage is correct and the mains lead is in good
condition. If the mains fuse blows, refer the unit to qualified service personnel.
This unit must be earthed.
Placement
The CXB10A and CXB12A have both been designed so that they can operate with the driver facing
forwards (ideal for live performances) or positioned with the driver facing downwards (smaller footprint,
ideal for installation). Self-adhesive feet are provided to protect floor surfaces when installed in the
downward facing orientation. Ensure that connections and controls are protected from potential damage.
The slotted front ports double as carrying handles for convenience.
Keep the unit out of direct sunlight and away from heat sources.
Keep away from moist or dusty environments.
Cleaning
Use a soft cloth with a neutral detergent to clean the cabinet, panel and controls.
To avoid damage, do not use solvents to clean this equipment.

178.275UK, 178.276UK User Manual
Top Panel
Rear Panel
Setting up
Each CXBA subwoofer has an internal class D amplifier which can also power 1, 2 or 4 satellite speakers.
The ideal placement for any subwoofer is on the floor, against a wall and if possible, in a corner. Any
surfaces that the cabinet is adjacent to will help to optimize the delivery of low frequencies.
If stereo satellite cabinets are to be powered from the CXBA sub, make sure that the red slide switch
(9) is set to “STEREO”. Connect these to the L+R speaker outputs (8) on the rear panel (pin1+ and
pin1-), ensuring a minimum impedance of 4Ω is connected to each output.
Alternatively, the satellite outputs can be combined to drive a single larger satellite cabinet by sliding the
BRIDGE switch to the right (BRIDGE). In this mode, the CXBA sub will supply the total satellite power to
the L CH satellite output (the R CH is not used). The output power is equivalent to the sub output.
Important note for Bridge Mode:
Connect only 1 satellite speaker which is 8Ω impedance and can handle the full output.
Check the manufacturer’s specifications for the satellite speaker before using BRIDGE mode.
Connect L+R inputs via jack or XLR to the combo inputs (6) or on RCA inputs (7) on the rear panel. A pair
of XLR outputs (5) are provided to continue the signal onto other equipment (amps, active speakers etc.)
1. Bass EQ control
2. Treble EQ control
3. Sub volume control
4. Master volume control
5. R+L XLR line outputs
6. R+L combo XLR/jack inputs
7. R+L RCA inputs
8. R+L satellite speaker outputs
9. IEC mains inlet and fuse holder
10. Mains power on/off switch

178.275UK, 178.276UK User Manual
Operation
Turn Master and Sub volume controls (4, 3) fully down and Treble and Bass (2, 1) controls to the vertical
(12 o’clock) position.
Connect to mains power using the IEC lead provided (10).
Play a signal to the inputs and switch the mains power on (11). Gradually turn up the Master volume
control and check the satellite speaker output (if satellites are connected).
Turn up the Sub volume control and check the low frequency output from the sub cabinet.
Adjust overall tone via the Treble and Bass EQ controls.
Turn down volume controls before switching off. Unplug from the mains if not used for long periods.
Specifications
Model
CXB10A
CXB12A
Power supply
220-240Vac, 50/60Hz (IEC)
Fuse rating
T3.15AL 250V
T5AL 250V
Sub driver
250mmØ (10“)
300mmØ (12“)
Power : subwoofer
250Wrms
420Wrms
Power : satellites @ 8 Ohms
2 x 125Wrms
2 x 150Wrms
Power : satellites @ 4 Ohms
2 x 170Wrms
2 x 210Wrms
Bridge power @ 8 Ohms
250Wrms
420Wrms
Inputs
L+R Combo (Jack/XLR), L+R RCA
Signal outputs
2 x XLRM
Outputs : speaker
L+R SPK connectors
Controls
Bass, Treble, Sub Vol, Master
Crossover frequency
150Hz
Dimensions
340 x 340 x 570mm
400 x 400 x 660mm
Weight
16.8kg
21.8kg
Troubleshooting
No output and no LEDs lit
Check POWER switch is on
Check mains lead is connected
Check mains fuse hasn’t blown
No output from sub unit
Ensure that SUB VOL control is not turned fully down
No output from satellite speakers
Ensure that the bridge switch is set to STEREO
Check speaker connection leads are OK and connected properly
Check the satellite speakers are working by using another amplifier
Output from L CH speaker only
Check that BRIDGE mode is not engaged
Distorted or overdriven output
Reduce the Master volume, Bass and Treble controls
Disposal: The “Crossed Wheelie Bin” symbol on the product means that the product is classed as Electrical or
Electronic equipment and should not be disposed with other household or commercial waste at the end of its useful life.
The goods must be disposed of according to your local council guidelines.
Errors and omissions excepted.
Copyright© 2015. AVSL Group Ltd.